Résultats de recherche

  • Briefs: Danfoss

    Danfoss has won the 2004 AHR Expo Innovation Award in the refrigeration category for its TN hermetic compressor for CO2. The Innovation Awards, jointly sponsored by ASHRAE and ARI, are designed to encourage innovation and recognise significant...

    • Date de publication : 28/04/2004
  • R&D

    The US Department of Energy's National Renewable Energy Laboratory (NREL) has developed a new air-conditioning system combining membranes, evaporative coolers and desiccants into a single device with the objective to suit to all climates,...

    • Date de publication : 07/02/2011
  • Residential CO2 heat pump system for combined space heating and hot water heating

    This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A theoretical and experimental study was carried out for a residential brine-to-water CO2 heat pump system for combined space heating and hot water heating - a...

    • Date de publication : 24/11/2004
  • Un prototype d'armoire à vins utilisant la technologie du froid magnétique (en anglais)

    Un prototype d'armoire à vins utilisant la technologie du froid magnétique a été présenté au Consumer Electronics Show de Las Vegas en Janvier 2015.

    • Date de publication : 29/01/2015
  • Briefs: Cool logistics

    Carrier Transicold has launched NaturaLINE, a range of refrigerated-container technology using natural refrigerants claimed to be the first in the world. Working with Hapag-Lloyd, a Hamburg-based shipping company, Carrier has been testing the...

    • Date de publication : 11/02/2011
  • Briefs: Cooling the Venus rover

    One of the main technical challenges in sending a probe on Venus is the searing temperatures on the planet's surface: 450°C, enough to melt lead! Several probes landed on Venus in the 1970s and early 1980s, but never lasted more than two hours....

    • Date de publication : 13/05/2008
  • Briefs: CO2 heat pumps in a retirement home

    Villa Laura, a retirement home near Florence, Italy, is equipped with 4 water/water ground-water heat pumps operating with a transcritical CO2 cycle providing heating, air conditioning and hot water. This technology is already used to produce hot...

    • Date de publication : 20/11/2007
  • Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the art R410a unit

    This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A reversible CO2 prototype RAC split unit system was designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen Cycle...

    • Date de publication : 24/11/2004
  • Marine refrigeration

    The use of natural refrigerants is gradually spreading. Here are two examples of their use in the marine sector: - Environmentally-friendly fish transport American Freedom is one of the world's largest refrigerated ships and can hold up to...

    • Date de publication : 20/11/2007
  • Alternative Cooling Technologies conference, London, 1st February 2005

    This conference, which was co-sponsored by the UK Institute of Refrigeration and organised commercially by RAC magazine, was well attended with about 140 people present. It was arranged in five sessions. In the first session, speakers from UK...

    • Date de publication : 11/02/2005
  • Des images sans précédent du centre de notre galaxie

    Le télescope spatial James Webb montre des images du centre de la Voie lactée, grâce à ses détecteurs infrarouges de pointe qui doivent être refroidis par cryogénie pour fonctionner...

    • Date de publication : 05/01/2024
    • Sujets : Technologie
  • Cryogenics: A new cryocooler

    A new cryocooler has been demonstrated at the National Institute of Standards and Technology (NIST) that combines small-size, rapid cooling, low temperatures and high efficiency. It is a "pulse tube" design that uses oscillating helium gas to...

    • Date de publication : 04/05/2007
  • Optical refrigeration

    A team in New Mexico University has created the first-ever optical cryocooler that could be applied to airborne and spaceborne sensors. It uses optical refrigeration which could enable miniaturization, an alternative to bulky mechanical...

    • Date de publication : 27/05/2010
  • Superconductivity for aircrafts?

    NASA recently published plans for the development of aircraft using superconductivity for a time frame around 2030. This could allow for noise reduction, improved carbon footprint and energy savings. The main advantage of HTS machines is that they...

    • Date de publication : 07/03/2010
  • Allemagne : Le label écologique « Blue Angel » inclut désormais les pompes à chaleur et les refroidisseurs de liquide

    L'édition 2023 de l'écolabel allemand “Blue Angel” inclut désormais les pompes à chaleur domestiques et les refroidisseurs de liquide.

    • Date de publication : 11/09/2023
    • Sujets : Réglementation